Common Plant Disease Symptoms

Like humans, plants can be affected by viral, bacterial, and fungal diseases. Many diseases can be treated by removing the affected part of the plant and then pruning it back to prevent reinfection, however, some will weaken the plant bad enough to kill it.

plant disease

Look for:

  • Leaf rust
  • Brown leaf spots
  • Powdery mildew
  • Yellowing of leaves
  • Cankers
  • Fruit spots
  • Crinkled leaves
  • Root, stem, or leaf galls
  • Profuse flowering
  • Leaf malformation
  • Stem rust
  • Inadequate pigments
  • Bacteria oozing from stem
  • Leaf scabs
  • Leaf blight
  • Vascular wilt
  • Leaf or fruit rot
  • Black spots

If your plant’s symptom seems to be on the surface (like mildew or spots), your plant will most likely live, provided that you remove the affected areas. If your plant’s symptoms seem to be internal, however (like vein-y streaks or distorted shapes), you may not be able to save them.

In order to prevent diseases, our deer fencing company recommends choosing hardy plants that are disease-resistant. Also, spray your plants with wilt-proofing solution and/or baking soda sprays, keep weeds away from them (because weeds are quick to germinate), and thin the stems of disease-prone plants to allow more air circulation.

For a great list of diseases, their symptoms, and their treatments, check out this article from the U.K.’s Channel 4.

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